added recipe for build-essential and linux-headers
postgres install + some required packages in essentials
mysql using percona
mysql with percona
mysql python
apache acl nscd
metadata
apache2 config
Merge branch 'feature/ubuntu_kdeploy' of github.com:stephaneb/chef-applications into feature/ubuntu_kdeploy

* 'feature/ubuntu_kdeploy' of github.com:stephaneb/chef-applications:
  metadata
  apache acl nscd

Conflicts:
	metadata.rb
removed metadata.rn.orig
cleaned the mysql recipe
apache config files, php configuration
fix a2dissite only if file exists
php recipe install fpm on server only
apache2 mod_jk en tomcat dir setenv.sh
postfix
pure-ftpd
service restart pure-ftpd
xvfb recipe
changed script name postfix mailname